Four of these five environments are examples of microclimates. Select the exception
a. a fallen log on the forest floor
b. the space under a rock
c. a moist, shady forest
d. the sunny side of a rock wall
e. a crack in a sidewalk
C
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For many people, eating is one of life’s greatest pleasures and they spend much time gathering, preparing and eating food. However, some of us would rather do other things with our time and it would be great if we did not have to eat at all. Alas, eating is a necessity. Choose the one FALSE reason why humans have to eat.
A. We need to obtain cholesterol for our cell membranes in our diet. B. We need to obtain trace elements such as iron in our diet. C. We need to replace water that we lose through sweat, breathing and urination. D. We need to obtain many different vitamins in our diet. E. We cannot make all twenty amino acids. F. We are heterotrophs. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about essential nutrients in humans? What other information is related to the question? Choose Answer · Given what you now know, what information is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
A DNA region that can "jump" from one location to another is called a
a. frameshift mutation. b. transposable element. c. mutagen. d. polysome. e. base-pair substitution.
After many years of testing, an hypothesis becomes accepted as a
a. problem. b. theory. c. conclusion. d. variable. e. control.
Before clotting factors from recombinant DNA became available, less than half of hemophiliacs in the
U.S. acquired HIV from injection of clotting factors obtained from blood samples. Indicate whether the statement is true or false.